eBay says card not eligible for authenticity guarantee

[Apple_Robert]

I purchased a T206 Ryan card MBA 5.

I just got an email from eBay that says...

Hi Robert,

Your item is headed your way, but we couldn’t provide the Authenticity Guarantee you may have been expecting because, upon inspection, we found it to be miscategorized.

Unfortunately, miscategorized items aren’t eligible for Authenticity Guarantee.

We know this may be disappointing, and we've asked the seller to review and update their listings to prevent this from happening again. Check out your order details to learn more about your item's shipping status and potential return options.
---------------------

Anyone have this happen before? If not, can someone kindly tell me what the problem with the listing was?

edited to add: Upon further reading, the guarantee doesn't apply to MBA cards. I missed that the first time I read the eBay guarantee. I think the eBay system should catch things like that when someone is creating a listing.